:root {
  --bg: #f7f7fb;
  --surface: #ffffff;
  --text: #16171d;
  --muted: #5b5d6b;
  --line: #e3e4ee;
  --accent: #176d5e;
  --accent-ink: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111218;
    --surface: #1a1b23;
    --text: #ececf3;
    --muted: #a3a5b6;
    --line: #2a2c38;
    --accent: #5bc7b1;
    --accent-ink: #233e38;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.wrap { max-width: 42rem; margin: 0 auto; padding: 2.5rem 1rem 4rem; }

header { display: flex; align-items: center; gap: .75rem; margin-bottom: 2rem; }
header a { color: inherit; text-decoration: none; }
.mark {
  width: 2.25rem; height: 2.25rem; border-radius: .6rem;
  background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 800;
}
.name { font-weight: 800; font-size: 1.15rem; letter-spacing: -.01em; }

h1 { font-size: 1.9rem; line-height: 1.2; letter-spacing: -.02em; margin: 0 0 .5rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
p, li { color: var(--text); }
.lede { color: var(--muted); font-size: 1.05rem; margin-top: 0; }
.meta { color: var(--muted); font-size: .9rem; }

a { color: var(--accent); }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: .9rem;
  padding: 1rem 1.25rem; margin: 1rem 0;
}

table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .55rem .5rem; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.scroll { overflow-x: auto; }

.links { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.button {
  display: inline-block; padding: .6rem 1rem; border-radius: .6rem;
  background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 600;
}
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--line); }

footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
footer a { color: var(--muted); }